Improving stability of torrefied biomass at cooling stage

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dc.contributor.authorKutlu (Ozben), O.
dc.contributor.authorKocar (Gunnur), G.
dc.date.accessioned2020-12-01T12:02:23Z
dc.date.available2020-12-01T12:02:23Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractTorrefied biomass, which has better fuel properties than the crude biomass is used as intermediate product for co-firing and gasification with coal. the stability of torrefied biomass, especially moisture content, deteriorates during direct cooling stage of the production process in case of sub-optimal operating conditions and condensation of liquids onto the solid. in this study, three operating parameters of direct cooling stage were optimised statistically with operating cost to produce a stable torrefied biomass. Their effect on the moisture content and final temperature of product was thoroughly investigated in this study. Furthermore, the temperature distribution in the cooling chamber was examined by using a thermal imaging camera. Even though the coolant flow rate played a more prominent role only for product properties and operating cost, the residence time was more effective parameter for cooling. the optimisation results indicated that the stability of torrefied biomass having similar properties with lignite could be improved by using the speed of 2.87 rpm and a residence time of about 20 min at nitrogen flow rate of 4 l/min. the minimum operating cost was calculated when there was a deviation of 20.7% from target product quality. (C) 2019 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipEge University Scientific Research Projects Coordination UnitEge University [16GEE016]en_US
dc.description.sponsorshipThis work was supported by Ege University Scientific Research Projects Coordination Unit. [Project Number: 16GEE016].en_US
dc.identifier.doi10.1016/j.renene.2019.09.054
dc.identifier.endpage823en_US
dc.identifier.issn0960-1481
dc.identifier.startpage814en_US
dc.identifier.urihttps://doi.org/10.1016/j.renene.2019.09.054
dc.identifier.urihttps://hdl.handle.net/11454/62666
dc.identifier.volume147en_US
dc.identifier.wosWOS:000502880700071en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofRenewable Energyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBiomassen_US
dc.subjectEnergy resourceen_US
dc.subjectTorrefactionen_US
dc.subjectCoolingen_US
dc.subjectMoisture contenten_US
dc.subjectBox-behnken designen_US
dc.titleImproving stability of torrefied biomass at cooling stageen_US
dc.typeArticleen_US

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